Question

How to declare and initialize a matrix with zeros in C

Answer 1

#include <stdio.h>

#define ROWS 3
#define COLS 4
  
void print_matrix(int matrix[][COLS], int rows, int cols);
  
int main(void)
{
    int matrix[ROWS][COLS] = { {0}, {0} };

    print_matrix(matrix, ROWS, COLS);
      
    return 0;
}
  
void print_matrix(int matrix[][COLS], int rows, int cols) {
    for (int i = 0; i < rows; i++) {
        for (int j = 0; j < cols; j++) {
            printf("%3i", matrix[i][j]);
        }
           
        printf("\n");
    }
}
 
 
  
/* 
run:
  
  0  0  0  0
  0  0  0  0
  0  0  0  0
  
*/

 

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